Specification: The TS472 Is An Advanced Microphone Preamplifier Solution Especially Suited For Mobile Multimedia Applications With The Following Key Features. Low Noise: 10 Nv / Hz Typical Equivalent Input Noise At F = 1 Khz Fully Differential Input/Output 2.2 To 5.5 V Single-Supply Power Supply Low Power Consumption At 20 Db: 1.8 Ma Fast Start-Up Time At 0 Db: 5 Ms Typ. Low Distortion: 0.1% Typical 40 Khz Bandwidth And Adjustable Gain At -3 Db Active Low Standby Mode Function (1 Ua) Low Noise 2.0 V Microphone Bias Outputs Available In Flip Chip Pb-Free Package And Qfn24 4 X 4 Mm Esd Protection (2 Kv) Dimensions: 27 X 23 X 3 MM/1.06 X 0.91 X 0.12 In Type: Module Condition: New Note: Due To The Different Monitor And Light Effect, The Actual Color Of The Item Might Be Slightly Different From The Color Showed On The Pictures. Thank You! Please Allow 1-2 CM Measuring Deviation Due To Manual Measurement. Included: 1 X TS472 Electret Microphone Amplifier 1. High-Quality Amplification: The TS472 amplifier module features a high-performance amplifier chip that delivers exceptional audio amplification, ensuring high-quality sound reproduction. It offers low noise and low distortion, preserving the fidelity of audio signals. 2. Low Power Consumption: Designed with low power consumption, the TS472 electret microphone amplifier minimizes energy usage during audio amplification, making it ideal for portable audio devices and battery-powered applications, prolonging battery life. 3. Wide Power Supply Voltage Range: The TS472 audio preamplifier board supports a wide power supply voltage range, from 2.2V to 5.5V, allowing for versatile usage in various power environments. 4. Overload Protection: The TS472 chip of PDA audio development board includes built-in overload protection for power currents, safeguarding the chip and external circuitry from damage caused by excessive current, enhancing system reliability and safety. The module also features built-in bias voltage, simplifying external circuit design and improving system stability. 5. Easy Integration: The TS472 PDA audio development board is designed for easy integration into other systems, typically featuring a compact size and standard interfaces, facilitating its use in a wide range of audio applications.